hmm. could you take a picture of what you want to put a heatsink on?
bah it's like 58$ with shipping :(

What the MOSFETs? The fan actually sits on top of them after further analysis and fan shroud has holes in the bottom for the sole purpose of cooling the MOSFETs. I guess just the way I was holding the card while looking at it, it appeared as though it didn't cover so I don't think I'll bother with heatsinks.

And it's only $35.71USD shipped for me (to Toronto, ON) using First Class International.